EP0288416A1 - Hay-making machine - Google Patents

Hay-making machine Download PDF

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Publication number
EP0288416A1
EP0288416A1 EP88710007A EP88710007A EP0288416A1 EP 0288416 A1 EP0288416 A1 EP 0288416A1 EP 88710007 A EP88710007 A EP 88710007A EP 88710007 A EP88710007 A EP 88710007A EP 0288416 A1 EP0288416 A1 EP 0288416A1
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EP
European Patent Office
Prior art keywords
outer part
lateral
pivot axis
inner part
operating position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88710007A
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German (de)
French (fr)
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EP0288416B1 (en
Inventor
Josef Ungruh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
H Niemeyer Soehne GmbH and Co KG
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H Niemeyer Soehne GmbH and Co KG
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Publication of EP0288416A1 publication Critical patent/EP0288416A1/en
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Publication of EP0288416B1 publication Critical patent/EP0288416B1/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D78/00—Haymakers with tines moving with respect to the machine
    • A01D78/08—Haymakers with tines moving with respect to the machine with tine-carrying rotary heads or wheels
    • A01D78/10—Haymakers with tines moving with respect to the machine with tine-carrying rotary heads or wheels the tines rotating about a substantially vertical axis
    • A01D78/1007—Arrangements to facilitate transportation specially adapted therefor
    • A01D78/1014—Folding frames

Definitions

  • the invention relates to a haymaking machine in an embodiment according to the preamble of claim 1.
  • the outer part of the side supports can be pivoted through 180 ° relative to the inner part about the longitudinal central axis common to the outer part and the inner part, as a result of which the rotary rake supported on the outer part comes into a transport protection position in which the rake tines extend with their ends towards the center of the machine when the side beams are folded up.
  • the pivoting of the rake tines assigned to the outer parts of the side carriers into the transport protection position can take place during the pivoting up of the side carriers by a gear with an actuating lever which, when its side carrier is pivoted up, pivots a gear part which is designed as a toothed segment and is pivoted on the inner part and pivots the outer part by means of a pinion assigned to the outer part .
  • a gear with an actuating lever which, when its side carrier is pivoted up, pivots a gear part which is designed as a toothed segment and is pivoted on the inner part and pivots the outer part by means of a pinion assigned to the outer part .
  • the invention has for its object to improve a haymaking machine of the type mentioned in such a way that the tips of the rake tines of the rotary rake assigned to the outer part of the side carrier can easily reach a position in the transport position in which they no longer cause any risk of injury to persons.
  • the rake tines of the rotary rakes supported on the outer parts extend upward and lie with their free ends at a height at which they no longer cause any risk of injury to persons.
  • the haymaking machine is structurally very simple and has a transport-oriented, greatly reduced overall width in the transport position, the transport position of all parts being brought about fully automatically simply by actuating the pressure medium drives for the side carriers and in the transport and operating positions an automatic locking of the Parts present.
  • the haymaking machine illustrated in FIGS. 1 to 4 consists in detail of a tubular crossmember which can be attached to an agricultural tractor (not shown), which comprises a central girder 1 and two side girders 4,5 which are pivotably connected to the latter in each case about an axis 2, 3 parallel to the direction of travel.
  • the haymaking machine is provided with four rotary rakes 6, 7, 8, 9 which have rake tines 11 on the outer ends of arms which are arranged in a star shape and which, in the operating position of the parts, are directed towards the ground.
  • All rotary rakes 6,7,8,9 are rotatable on the cross member about vertical axes 12 stored, two rotary rakes 7, 8 are assigned to the center support 1 and one rotary rake 6 and 9 to a side support 4 and 5, respectively.
  • the rotary rakes can be driven by means of a drive shaft mounted in the cross member, which receives its rotary movement from a central gear 13 which can be connected to the PTO of the tractor.
  • the haymaking machine also includes wheels 14 which support the machine on the ground during operation and are each arranged under a rotary rake 6, 7, 8 or 9.
  • the side supports 4, 5 can be pivoted up about the main pivot axes 2 and 3, which are parallel to the direction of travel, in the direction of the arrows 15, 16 from their essentially horizontal position during operation into the transport position illustrated in FIG. 2, in which they extend essentially vertically.
  • a pressure medium drive 17, 18 is provided for swiveling up the side supports 4, 5, the cylinder 19 of which hinges on a frame strut 20, which is supported in parallel above the central support 1 on this, and the piston rods 21 of which are articulated with a bracket part 22 on the side supports 4 and 5 connected is. If the piston rods 21 are retracted into the cylinders 19 by acting on the pressure medium cylinders 17, 18, the side carriers 4, 5 are pivoted up into the transport position according to FIG.
  • the pressure medium drives 17, 18 can be acted upon in the opposite direction or can also be switched only under pressure, in which case the return under gravity effect, possibly with spring support.
  • the rotary rakes 6, 9 at the ends of the side supports 4, 5 can in turn be folded about an additional 90 ° into a transport protection position about an additional pivot axis 23, 24 aligned in the direction of travel in the exemplary embodiment according to FIGS. 1 to 4, in which the vertical axes 12 of the rotary rakes 6 , 9 extend approximately parallel to the longitudinal central axis 25, 26 of their side member 4 or 5.
  • the swivel angle is slightly larger than 90 °, so that the vertical axes of the rotary rakes 6, 9 in the transport protection position have an upward converging orientation.
  • the side supports 4,5 each consist of an inner part 25 with a fork 27 at its outer end and an outer part 28 which is hinged to the legs of the fork 27 about the additional pivot axis 23 or 24.
  • the outer part 28 forms an axial extension of the inner part and, like the inner part 25, encloses the associated part of the drive shaft 29, each with a universal joint 30 or 31 in the region of the main pivot axes 2, 3 and in the region of the additional pivot axes 23, 24 is provided.
  • the articulation axes of these universal joints 30, 31 lie with the main pivot axis 2, 3 or the additional pivot axis 23, 24 in a common plane.
  • an actuating rod 33 engages in a joint 32 with an axis parallel to the main pivot axis 2, 3 at a distance, the other end of which is connected to the outer part 28 via a joint 34 with an axis also parallel to the additional pivot axis 23, 24.
  • the position of the joints 32, 34 is selected so that when the side supports 4, 5 are pivoted up, the actuating rod 33 acts as a pull rod, which moves the outer part 28 into the transport protection position with rotary rakes 6 and 9, respectively.
  • the actuating rod 33 acting as a push rod, leads its outer part 28 back into the operating position according to FIG. 1.
  • the actuating rod 33 additionally acts as a locking element, by means of which the outer parts 28 are locked in their respective position relative to the inner parts 25, side supports 4, 5.
  • the adjusting rod 33 replaces separate locking means, which may in principle be additionally present.
  • a tension spring 35 is provided, which strives to fold the outer part 28 back into its operating position. This tension spring 35 supports the folding back of the outer part 28 when the side supports 4, 5 are pivoted back into the operating position.
  • the axes 2, 3, 23 and 24 and that of the joints 32, 34 are all aligned parallel to one another and exactly parallel to the direction of travel, but certain deviations can be made here, which, however, should not exceed 10 °.
  • the second embodiment of a haymaking machine according to the invention corresponds in all essential details to the embodiment according to FIGS. 1 to 4. Corresponding components are therefore provided with the same reference numerals.
  • the inner parts 25 of the side supports 4, 5 are only extended and in turn are provided with a rotary rake 6.1 or 9.1, so that the machine has a total of six rotary rakes.
  • the vertical axes 12 of the six rotary rakes 6, 6, 7, 8, 9, 9, 1, like the four rotary rakes 6, 7, 8, 9 of the machine design according to FIGS. 1 to 4, have the same distance from one another in the operating position of the machine.
  • the machine width is approximately reduced to that of a two-rotor machine, and the rotary rakes 6, 9 supported on the outer parts 28 are in a transport protection position in which their rake tines 11 no longer endanger people cause.
  • the rotary rakes 6.1 and 9.1 assigned to the inner parts 25 require shielding, e.g. thanks to the foldable screen grille.

Abstract

The haymaking machine comprises a tubular crossmember which can be suspended or mounted on a tractor and is aligned essentially horizontally in the operating position and which has a middle bearer (1) and, on each of the two sides, a lateral bearer (4,5) connected to this in an articulated manner about a main pivot axis (2,3) approximately parallel to the direction of travel and respectively comprising an inner part (25) and an outer part (28). Furthermore, the machine comprises a number of rotary rakes (6,6.1,7,8,9,9.1) which have raking prongs (11) directed towards the ground in the operating position and which are mounted rotatably about vertical axes (12) on the crossmember and can be driven by means of a drive shaft (29) mounted in the crossmember, and running wheels (14) which are each arranged under a rotary rake (6,6.1,7,8,9,9.1) in each case. A pressure-medium drive (17,18) assigned to each lateral bearer (4,5) serves for pivoting the lateral bearers (4,5) upwards and for fixing them in a transport position, the outer part (28) of each lateral bearer (4,5) being equipped only with one rotary rake (6,9) and being pivotable by means of an adjusting lever (33) into a transport guard position relative to the adjacent inner part (25) about an additional pivot axis (23,24). The additional pivot axes (23,24) are aligned approximately parallel to the direction of travel, and the outer parts (28) are connected tiltably about these to the inner parts (25) of the lateral bearers (4,5). The adjusting rod (33) is designed as a pull and push rod which engages directly on the outer part (28) via a joint (34) with a joint axis parallel to and at a distance from the additional pivot axis (23,24) and which, in the two end positions of the lateral bearers (4,5), locks their outer part (28) in its respective tilt positions relative to the adjacent inner part (25).

Description

Die Erfindung bezieht sich auf eine Heuwerbungsma­schine in einer Ausbildung gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a haymaking machine in an embodiment according to the preamble of claim 1.

Bei einer bekannten Maschine dieser Art (EP-A-0 203 023) ist der Außenteil der Seitenträger um die dem Außenteil und dem Innenteil gemeinsame Längsmittel­achse um 180° relativ zum Innenteil verschwenkbar, wodurch der am Außenteil abgestützte Kreiselrechen in eine Transportschutzstellung gelangt, in der sich des­sen Rechzinken bei hochgeklappten Seitenträgern mit ihren Enden zur Maschinenmitte hin erstrecken.In a known machine of this type (EP-A-0 203 023), the outer part of the side supports can be pivoted through 180 ° relative to the inner part about the longitudinal central axis common to the outer part and the inner part, as a result of which the rotary rake supported on the outer part comes into a transport protection position in which the rake tines extend with their ends towards the center of the machine when the side beams are folded up.

Das Verschwenken der den Außenteilen der Seitenträger zugeordneten Rechzinken in die Transportschutzstellung kann während des Hochschwenkens der Seitenträger durch ein Getriebe mit einem Stellhebel erfolgen, der beim Hochschwenken seines Seitenträgers ein als Zahnsegment ausgebildetes am Innenteil gelagertes Getriebeteil verschwenkt und mittels eines dem Außenteil zugeordne­ten Ritzels den Außenteil verschwenkt. Ein solches Getriebe ist baulich außerordentlich aufwendig und zudem sehr empfindlich, so daß es für ein zuverlässi­ges Funktionieren der regelmäßigen Wartung bedarf. Insbesondere aber liegen die nach innen gerichteten Rechzinken mit ihren Verletzungsgefahren hervorrufen­den Enden in Körperhöhe von Personen, so daß Gefahren von Verletzungen gegenüber einer nach außen gerichte­ten Lage der Rechzinken zwar gemindert, nicht jedoch beseitigt sind.The pivoting of the rake tines assigned to the outer parts of the side carriers into the transport protection position can take place during the pivoting up of the side carriers by a gear with an actuating lever which, when its side carrier is pivoted up, pivots a gear part which is designed as a toothed segment and is pivoted on the inner part and pivots the outer part by means of a pinion assigned to the outer part . Such a transmission is structurally extremely complex and also very sensitive, so that regular maintenance is required for reliable functioning. In particular, however, are those facing inwards Rake tines with their ends causing injury at body height, so that the risk of injury to an outward position of the rake tines is reduced but not eliminated.

Der Erfindung liegt die Aufgabe zugrunde, eine Heuwer­bungsmaschine der eingangs genannten Art so zu verbes­sern, daß die Spitzen der Rechzinken der dem Außenteil des Seitenträgers zugeordneten Kreiselrechen in der Transportstellung mit einfachen Mitteln in eine Lage gelangen, in der sie keine Verletzungsgefahren für Personen mehr hervorrufen.The invention has for its object to improve a haymaking machine of the type mentioned in such a way that the tips of the rake tines of the rotary rake assigned to the outer part of the side carrier can easily reach a position in the transport position in which they no longer cause any risk of injury to persons.

Die Erfindung löst diese Aufgabe ausgehend von einer Heuwerbungsmaschine gemäß dem Oberbegriff des An­spruchs 1 mit den Merkmalen des kennzeichnenden Teils dieses Anspruchs. Hinsichtlich wesentlicher weiterer Ausgestaltungen wird auf die Ansprüche 2 und 3 verwie­sen.The invention solves this problem on the basis of a haymaking machine according to the preamble of claim 1 with the features of the characterizing part of this claim. With regard to essential further refinements, reference is made to claims 2 and 3.

Bei der Heuwerbungsmaschine gemäß der Erfindung er­strecken sich in der Transportstellung der Heuwer­bungsmaschine, d.h. bei hochgeschwenkten Seitenträ­gern, die Rechzinken der an den Außenteilen abge­stützten Kreiselrechen nach oben hin und liegen mit ihren freien Enden in einer Höhe, in der sie keine Verletzungsgefahren gegenüber Personen mehr hervorru­fen. Die Heuwerbungsmaschine ist dabei baulich sehr einfach und hat in Transportstellung eine transportge­rechte, stark verminderte Gesamtbreite, wobei die Transportstellung aller Teile vollautomatisch ledig­lich durch Betätigen der Druckmittelantriebe für die Seitenträger herbeigeführt wird und in Transport- und in Betriebsstellung eine selbstätige Arretierung der Teile vorliegt.In the haymaking machine according to the invention, in the transport position of the haymaking machine, that is to say with the side supports pivoted upwards, the rake tines of the rotary rakes supported on the outer parts extend upward and lie with their free ends at a height at which they no longer cause any risk of injury to persons. The haymaking machine is structurally very simple and has a transport-oriented, greatly reduced overall width in the transport position, the transport position of all parts being brought about fully automatically simply by actuating the pressure medium drives for the side carriers and in the transport and operating positions an automatic locking of the Parts present.

Weitere Einzelheiten und Vorteile ergeben sich aus der nachfolgenden Beschreibung und der Zeichnung, in der ein Ausführungsbeispiel des Gegenstands der Erfindung schematisch näher veranschaulicht ist. In der Zeich­nung zeigen:

  • Fig. 1 eine schematische Rückansicht einer ersten Aus­führung einer Heuwerbungsmaschine nach der Er­findung in Betriebsstellung ihrer Teile,
  • Fig. 2 eine Rückansicht der Maschine nach Fig. 1 mit in Transportstellung überführten Teilen,
  • Fig. 3 eine abgebrochene Einzeldarstellung des Außen­endes des Mittelträgers und eines damit verbundenen Seitenträgers der Maschine bei Blickrichtung auf die Teile gemäß Fig. 1,
  • Fig. 4 eine abgebrochene und vereinfachte Draufsicht zu Fig. 3., und
  • Fig. 5 eine Ansicht ähnlich Fig. 2 einer zweiten Aus­führungsform einer Heuwerbungsmaschine nach der Erfindung.
Further details and advantages result from the following description and the drawing, in which an exemplary embodiment of the object of the invention is schematically illustrated in more detail. The drawing shows:
  • 1 is a schematic rear view of a first embodiment of a haymaking machine according to the invention in the operating position of its parts,
  • 2 shows a rear view of the machine according to FIG. 1 with parts transferred into the transport position,
  • 3 shows a broken-off individual representation of the outer end of the central support and a connected side support of the machine when looking at the parts according to FIG. 1,
  • Fig. 4 is a broken and simplified plan view of Fig. 3, and
  • Fig. 5 is a view similar to Fig. 2 of a second embodiment of a haymaking machine according to the invention.

Die in Fig. 1 bis 4 veranschaulichte Heuwerbungsma­schine besteht im einzelnen aus einem rohrförmigen, an einen nicht dargestellten landwirtschaftlichen Schlep­per anbaubaren Querträger, der einen Mittelträger 1 und zwei mit diesem jeweils um eine fahrtrichtungs­parallele Achse 2,3 gelenkig verbundene Seitenträger 4,5 umfaßt. Die Heuwerbungsmaschine ist mit vier Kreiselrechen 6,7,8,9 versehen, die an den Außenenden von sternförmig angeordneten Armen 10 Rechzinken 11 aufweisen, welche in Betriebsstellung der Teile zum Boden hin gerichtet sind. Sämtliche Kreiselrechen 6,7,8,9 sind am Querträger um Hochachsen 12 drehbar gelagert, wobei zwei Kreiselrechen 7,8 dem Mittelträ­ger 1 und je ein Kreiselrechen 6 bzw. 9 einem Seiten­träger 4 bzw. 5 zugeordnet sind. Die Kreiselrechen sind dabei mittels einer im Querträger gelagerten An­triebswelle antreibbar, die ihre Drehbewegung von einem mit der Zapfwelle des Schleppers verbindbaren Zentralgetriebe 13 her erhält.The haymaking machine illustrated in FIGS. 1 to 4 consists in detail of a tubular crossmember which can be attached to an agricultural tractor (not shown), which comprises a central girder 1 and two side girders 4,5 which are pivotably connected to the latter in each case about an axis 2, 3 parallel to the direction of travel. The haymaking machine is provided with four rotary rakes 6, 7, 8, 9 which have rake tines 11 on the outer ends of arms which are arranged in a star shape and which, in the operating position of the parts, are directed towards the ground. All rotary rakes 6,7,8,9 are rotatable on the cross member about vertical axes 12 stored, two rotary rakes 7, 8 are assigned to the center support 1 and one rotary rake 6 and 9 to a side support 4 and 5, respectively. The rotary rakes can be driven by means of a drive shaft mounted in the cross member, which receives its rotary movement from a central gear 13 which can be connected to the PTO of the tractor.

Die Heuwerbungsmaschine umfaßt ferner Laufräder 14, welche die Maschine während des Betriebs auf dem Boden abstützen und jeweils unter einem Kreiselrechen 6,7,8 bzw. 9 angeordnet sind.The haymaking machine also includes wheels 14 which support the machine on the ground during operation and are each arranged under a rotary rake 6, 7, 8 or 9.

Die Seitenträger 4,5 sind um die fahrtrichtungsparal­lelen Hauptschwenkachsen 2 bzw. 3 in Richtung der ein­gezeichneten Pfeile 15,16 aus ihrer im Betrieb im wesentlichen horizontalen Stellung in die in Fig. 2 veranschaulichte Transportstellung hochschenkbar, in der sie sich im wesentlichen vertikal erstrecken. Zum Hochschwenken der Seitenträger 4,5 ist jeweils ein Druckmittelantrieb 17,18 vorgesehen, dessen Zylinder 19 gelenkig an einer parallel oberhalb des Mittelträ­gers 1 an diesem ortsfest abgestützten Rahmenstrebe 20 angreift und dessen Kolbenstangen 21 gelenkig mit einem Konsolteil 22 an den Seitenträgern 4 bzw. 5 ver­bunden ist. Werden durch Beaufschlagen der Druckmit­telzylinder 17,18 deren Kolbenstangen 21 in die Zylin­der 19 eingefahren, so erfolgt das Hochschwenken der Seitenträger 4,5 in die Transportstellung gemäß Fig. 2, in der die Seitenträger 4,5 über die Druckmittelan­triebe 17,18 für Transportfahrten verriegelbar sind. Für eine Rückführung der Teile in die Betriebsstellung können die Druckmittelantriebe 17,18 entgegengesetzt beaufschlagt werden oder auch nur drucklos schaltbar sein, in welchem Falle die Rückkehr unter Schwerkraft­ wirkung, gegebenenfalls mit Federunterstützung, er­folgt.The side supports 4, 5 can be pivoted up about the main pivot axes 2 and 3, which are parallel to the direction of travel, in the direction of the arrows 15, 16 from their essentially horizontal position during operation into the transport position illustrated in FIG. 2, in which they extend essentially vertically. A pressure medium drive 17, 18 is provided for swiveling up the side supports 4, 5, the cylinder 19 of which hinges on a frame strut 20, which is supported in parallel above the central support 1 on this, and the piston rods 21 of which are articulated with a bracket part 22 on the side supports 4 and 5 connected is. If the piston rods 21 are retracted into the cylinders 19 by acting on the pressure medium cylinders 17, 18, the side carriers 4, 5 are pivoted up into the transport position according to FIG. 2, in which the side carriers 4, 5 can be locked for transport journeys via the pressure medium drives 17, 18 are. For returning the parts to the operating position, the pressure medium drives 17, 18 can be acted upon in the opposite direction or can also be switched only under pressure, in which case the return under gravity effect, possibly with spring support.

Die Kreiselrechen 6,9 an den Enden der Seitenträger 4,5 sind ihrerseits um eine fahrtrichtungsparallel ausgerichtete Zusatzschwenkachse 23,24 bei dem Aus­führungsbeispiel nach Fig. 1 bis 4 um etwa 90° in eine Transportschutzstellung klappbar, in der sich die Hochachsen 12 der Kreiselrechen 6,9 annähernd parallel zur Längsmittelachse 25,26 ihres Seitenträgers 4 bzw. 5 erstrecken. Bei dem dargestellten Beispiel ist der Schwenkwinkel geringfügig größer als 90°, so daß die Hochachsen der in Transportschutzstellung befindlichen Kreiselrechen 6,9 eine nach oben hin konvergierende Ausrichtung haben. In dieser Transportschutzstellung der Kreiselrechen 6,9 erstrecken sich deren Rechzinken 11 nach oben hin und enden in einer Höhe, die außer­halb des Gefährdungsbereiches für Personen gelegen ist und beispielsweise 2 m und darüber beträgt. Die Ge­samtbreite der Maschine ist zugleich auf die Abmessung einer zweikreiseligen Maschine reduziert.The rotary rakes 6, 9 at the ends of the side supports 4, 5 can in turn be folded about an additional 90 ° into a transport protection position about an additional pivot axis 23, 24 aligned in the direction of travel in the exemplary embodiment according to FIGS. 1 to 4, in which the vertical axes 12 of the rotary rakes 6 , 9 extend approximately parallel to the longitudinal central axis 25, 26 of their side member 4 or 5. In the example shown, the swivel angle is slightly larger than 90 °, so that the vertical axes of the rotary rakes 6, 9 in the transport protection position have an upward converging orientation. In this transport protection position of the rotary rakes 6, 9, their rake tines 11 extend upwards and end at a height which is outside the danger zone for people and is, for example, 2 m and above. The overall width of the machine is also reduced to the size of a two-rotor machine.

Die Seitenträger 4,5 bestehen jeweils aus einem Innen­teil 25 mit einer Gabel 27 an ihrem Außenende und aus einem Außenteil 28, das an den Schenkeln der Gabel 27 um die Zusatzschwenkachse 23 bzw. 24 klappbar ange­lenkt ist. Der Außenteil 28 bildet eine axiale Verlän­gerung des Innenteils und umschließt ebenso wie der Innenteil 25 den zugehörigen Teil der Antriebswelle 29, die sowohl im Bereich der Hauptschwenkachsen 2,3, als auch im Bereich der Zusatzschwenkachsen 23,24 je mit einem Kreuzgelenk 30 bzw. 31 versehen ist. Die Gelenkachsen dieser Kreuzgelenke 30,31 liegen mit der Hauptschwenkachse 2,3 bzw. der Zusatzschwenkachse 23,24 jeweils in einer gemeinsamen Ebene.The side supports 4,5 each consist of an inner part 25 with a fork 27 at its outer end and an outer part 28 which is hinged to the legs of the fork 27 about the additional pivot axis 23 or 24. The outer part 28 forms an axial extension of the inner part and, like the inner part 25, encloses the associated part of the drive shaft 29, each with a universal joint 30 or 31 in the region of the main pivot axes 2, 3 and in the region of the additional pivot axes 23, 24 is provided. The articulation axes of these universal joints 30, 31 lie with the main pivot axis 2, 3 or the additional pivot axis 23, 24 in a common plane.

Am Außenende des Mittelträgers 1 greift in einem Ge­lenk 32 mit zur Hauptschwenkachse 2,3 im Abstand paralleler Achse eine Stellstange 33 an, deren anderes Ende über ein Gelenk 34 mit ebenfalls zur Zusatz­schwenkachse 23,24 paralleler Achse mit dem Außenteil 28 verbunden ist. Die Lage der Gelenke 32,34 ist dabei so gewählt, daß beim Hochschwenken der Seitenträger 4,5 die Stellstange 33 jeweils als Zugstange wirkt, welche den Außenteil 28 mit Kreiselrechen 6 bzw. 9 in die Transportschutzstellung überführt. Beim Herab­schwenken der Seitenträger 4,5 führt die Stellstange 33 als Druckstange wirkend ihren Außenteil 28 wieder in die Betriebsstellung gemäß Fig. 1 zurück. In beiden Stellungen wirkt die Stellstange 33 zusätzlich als Verriegelungselement, durch die Außenteile 28 in ihrer jeweiligen Lage zu den Innenteilen 25 Seitenträger 4,5 arretiert sind. Auf diese Weise ersetzt die Stellstan­ge 33 gesonderte Verriegelungsmittel, die grundsätz­lich zusätzlich vorhanden sein können.At the outer end of the central support 1, an actuating rod 33 engages in a joint 32 with an axis parallel to the main pivot axis 2, 3 at a distance, the other end of which is connected to the outer part 28 via a joint 34 with an axis also parallel to the additional pivot axis 23, 24. The position of the joints 32, 34 is selected so that when the side supports 4, 5 are pivoted up, the actuating rod 33 acts as a pull rod, which moves the outer part 28 into the transport protection position with rotary rakes 6 and 9, respectively. When the side supports 4, 5 pivot down, the actuating rod 33, acting as a push rod, leads its outer part 28 back into the operating position according to FIG. 1. In both positions, the actuating rod 33 additionally acts as a locking element, by means of which the outer parts 28 are locked in their respective position relative to the inner parts 25, side supports 4, 5. In this way, the adjusting rod 33 replaces separate locking means, which may in principle be additionally present.

Zwischen dem Innenteil 25 und dem Außenteil 28 der Seitenträger 4,5 ist jeweils eine Zugfeder 35 vorge­sehen, welche den Außenteil 28 in seine Betriebsstel­lung zurückzuklappen bestrebt ist. Diese Zugfeder 35 unterstützt die Rückklappbewegung des Außenteils 28 beim Rückschwenken der Seitenträger 4,5 in die Be­triebsstellung.Between the inner part 25 and the outer part 28 of the side supports 4, 5, a tension spring 35 is provided, which strives to fold the outer part 28 back into its operating position. This tension spring 35 supports the folding back of the outer part 28 when the side supports 4, 5 are pivoted back into the operating position.

Bei dem vorstehend beschriebenen Ausführungsbeispiel sind die Achsen 2,3,23 und 24 sowie die der Gelenke 32,34 sämtlich untereinander parallel sowie dabei exakt fahrtrichtungsparallel ausgerichtet, jedoch können hier gewisse Abweichungen vorgenommen werden, die jedoch 10° nicht überschreiten sollten.In the exemplary embodiment described above, the axes 2, 3, 23 and 24 and that of the joints 32, 34 are all aligned parallel to one another and exactly parallel to the direction of travel, but certain deviations can be made here, which, however, should not exceed 10 °.

Die zweite Ausführungsform einer Heuwerbungsmaschine nach der Erfindung, wie sie in Fig. 5 veranschaulicht ist, entspricht in allen wesentlichen Einzelheiten der Ausführung nach Fig. 1 bis 4. Übereinstimmende Bautei­le sind daher mit gleichen Bezugszeichen versehen. Die Innenteile 25 der Seitenträger 4,5 sind lediglich ver­längert und ihrerseits mit einem Kreiselrechen 6.1 bzw. 9.1 versehen, so daß die Maschine über insgesamt sechs Kreiselrechen verfügt. Die Hochachsen 12 der sechs Kreiselrechen 6,6.1,7,8,9,9.1 haben ebenso wie die vier Kreiselrechen 6,7,8,9 der Maschinenausführung nach Fig. 1 bis 4 in Betriebsstellung der Maschine einen untereinander gleichen Abstand. Auch bei der sechskreiseligen Maschine nach Fig. 5 ist in der Transportstellung der Teile die Maschinenbreite an­nähernd auf die einer zweikreiseligen Maschine verrin­gert, und die an den Außenteilen 28 abgestützten Krei­selrechen 6,9 befinden sich in einer Transportschutz­stellung, in der ihre Rechzinken 11 keine Personenge­fährdung mehr hervorrufen. Die den Innenteilen 25 zu­geordneten Kreiselrechen 6.1 und 9.1 bedürfen einer Abschirmung, z.B. durch klappbare Abschirmungsgitter.The second embodiment of a haymaking machine according to the invention, as illustrated in FIG. 5, corresponds in all essential details to the embodiment according to FIGS. 1 to 4. Corresponding components are therefore provided with the same reference numerals. The inner parts 25 of the side supports 4, 5 are only extended and in turn are provided with a rotary rake 6.1 or 9.1, so that the machine has a total of six rotary rakes. The vertical axes 12 of the six rotary rakes 6, 6, 7, 8, 9, 9, 1, like the four rotary rakes 6, 7, 8, 9 of the machine design according to FIGS. 1 to 4, have the same distance from one another in the operating position of the machine. 5, in the transport position of the parts, the machine width is approximately reduced to that of a two-rotor machine, and the rotary rakes 6, 9 supported on the outer parts 28 are in a transport protection position in which their rake tines 11 no longer endanger people cause. The rotary rakes 6.1 and 9.1 assigned to the inner parts 25 require shielding, e.g. thanks to the foldable screen grille.

Claims (3)

1. Heuwerbungsmaschine mit einem rohrförmigen, an einen landwirtschaftlichen Schlepper anhäng- oder an dessen Dreipunkthydraulik anbaubaren, in Betriebsstel­lung der Maschine im wesentlichen horizontal ausge­richteten Querträger, der einen Mittelträger (1) und zu beiden Seiten einen mit diesem um eine etwa fahrt­richtungsparallele Hauptschwenkachse (2,3) gelenkig verbundenen, jeweils einen Innenteil (25) und einen Außenteil (28) umfassenden Seitenträger (4,5) auf­weist, mit einer Anzahl von in Betriebsstellung zum Boden hin gerichtete Rechzinken (11) aufweisenden Kreiselrechen (6,6.1,7,8,9,9.1), die am Querträger um Hochachsen (12) drehbar gelagert und mittels einer im Querträger gelagerten Antriebswelle (29) antreibbar sind, mit Laufrädern (14), welche die Maschine während des Betriebs auf dem Boden abstützen und jeweils unter einem Kreiselrechen (6,6.1,7,8,9,9.1) angeordnet sind, und mit einem jedem Seitenträger (4,5) zugeordneten Druckmittelantrieb (17,18) zum Hochschwenken der Sei­tenträger (4,5) und zu deren Festlegen in einer Trans­portstellung, wobei der Außenteil (28) eines jeden Seitenträgers (4,5) lediglich mit einem Kreiselrechen (6,9) versehen und mittels eines Stellhebels (33) um eine Zusatzschwenkachse (23,24) relativ zum benachbar­ten Innenteil (25) in eine Transportschutzstellung verschwenkbar ist, dadurch gekennzeichnet, daß die Zusatzschwenkachsen (23,24) etwa fahrtrichtungsparal­lel ausgerichtet und die Außenteile (28) um diese klappbar mit den Innenteilen (25) der Seitenträger (4,5) verbunden sind, und daß die Stellstange (33) als direkt über ein Gelenk (34) mit zur Zusatzschwenkachse (23,24) im Abstand paralleler Gelenkachse am Außenteil (28) angreifende Zug- und Druckstange ausgebildet ist, die in beiden Endstellungen der Seitenträger (4,5) deren Außenteil (28) in seinen jeweiligen Klappstel­lungen zum benachbarten Innenteil (25) arretiert.1. haymaking machine with a tubular cross-member, which can be attached to an agricultural tractor or can be attached to its three-point hydraulic system and is essentially horizontally oriented in the operating position of the machine, which has a central support (1) and on both sides a main swivel axis (2, 3) has articulatedly connected side supports (4, 5) each comprising an inner part (25) and an outer part (28), with a number of rotary rakes (6, 6, 1, 7, 8) pointing towards the ground in the operating position , 9,9.1), which are rotatably mounted on the cross member about vertical axes (12) and can be driven by means of a drive shaft (29) mounted in the cross member, with wheels (14) which support the machine during operation on the ground and each under a rotary rake (6,6,1,7,8,9,9.1) are arranged, and with a pressure medium drive (17,18) assigned to each side support (4,5) for swiveling the side door up Carrier (4, 5) and for fixing it in a transport position, the outer part (28) of each side support (4, 5) only being provided with a rotary rake (6, 9) and by means of an adjusting lever (33) about an additional pivot axis (23 , 24) can be pivoted relative to the adjacent inner part (25) into a transport protection position, characterized in that the additional pivot axes (23, 24) are aligned approximately parallel to the direction of travel and the outer parts (28) around them foldable with the inner parts (25) of the side supports (4,5), and that the actuating rod (33) as directly via a joint (34) with the additional pivot axis (23,24) at a distance parallel joint axis on the outer part (28) Pull and push rod is formed, which locks the outer part (28) in its respective folding positions to the adjacent inner part (25) in both end positions of the side supports (4, 5). 2. Maschine nach Anspruch 1, dadurch gekennzeichnet, daß die Stellstange (33) an ihrem dem Außenteil (28) ihres Seitenträgers (4,5) abgewandten Ende über ein Gelenk (32) mit zur Hauptschwenkachse (2,3) im Abstand paralleler Gelenkachse am Mittelträger (1) angreift.2. Machine according to claim 1, characterized in that the actuating rod (33) on its the outer part (28) of its side member (4,5) end facing away via a joint (32) with the main pivot axis (2,3) at a distance parallel joint axis attacks on the center beam (1). 3. Maschine nach Anspruch 1 oder 2, dadurch gekenn­zeichnet, daß zwischen dem Innenteil (25) und dem Außenteil (28) der Seitenträger (4,5) eine Zugfeder (35) vorgesehen ist, welche den Außenteil (28) in seine Betriebsstellung zurückzuklappen bestrebt ist.3. Machine according to claim 1 or 2, characterized in that a tension spring (35) is provided between the inner part (25) and the outer part (28) of the side carrier (4,5), which folds the outer part (28) back into its operating position strives.
EP88710007A 1987-04-22 1988-04-20 Hay-making machine Expired - Lifetime EP0288416B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3713474 1987-04-22
DE19873713474 DE3713474A1 (en) 1987-04-22 1987-04-22 HAY ADVERTISING MACHINE

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EP0288416A1 true EP0288416A1 (en) 1988-10-26
EP0288416B1 EP0288416B1 (en) 1994-10-05

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Cited By (2)

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EP0300937B1 (en) * 1987-07-15 1991-11-13 Kuhn S.A. Haymaking machine equipped with several pivoting raking wheels in order to be folded up for transport or storage
EP1763980A1 (en) * 2005-09-16 2007-03-21 Amazonen-Werke H. Dreyer GmbH & Co. KG Driving device for an agricultur device

Families Citing this family (4)

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DE3903764A1 (en) * 1989-02-09 1990-08-16 Claas Saulgau Gmbh CYLINDER HEAT MACHINES
DE4217375A1 (en) * 1992-05-26 1993-12-02 Claas Saulgau Gmbh Agricultural machine, especially rotary tedders
DE19943208C2 (en) 1999-09-09 2003-06-18 Walterscheid Gmbh Gkn Drive arrangement with an actuator
LU102777B1 (en) 2021-04-12 2022-10-13 Terion Ag CROSS-FLOW SHREDDER FOR SHREDDING MATERIAL

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EP0165638A1 (en) * 1984-06-12 1985-12-27 P.J. Zweegers en Zonen Landbouwmachinefabriek B.V. Apparatus for farming vegetation lying on the ground
US4615397A (en) * 1985-10-30 1986-10-07 Deutz-Allis Corporation Agricultural implement with double wing folding mechanism using toggle linkage and hydraulic actuator
EP0203023A1 (en) * 1985-05-21 1986-11-26 Kuhn S.A. Haymaking machines with several raking wheels
DE8625784U1 (en) * 1986-09-26 1987-03-05 Kloeckner-Humboldt-Deutz Ag Zweigniederlassung Fahr, 7702 Gottmadingen, De
DE8602563U1 (en) * 1986-01-31 1987-04-16 Kloeckner-Humboldt-Deutz Ag Zweigniederlassung Fahr, 7702 Gottmadingen, De
DE8712441U1 (en) * 1987-09-15 1987-10-29 Fella-Werke Gmbh, 8501 Feucht, De
DE8715674U1 (en) * 1987-11-26 1988-01-28 Fella-Werke Gmbh, 8501 Feucht, De

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Publication number Priority date Publication date Assignee Title
GB2039702A (en) * 1979-01-11 1980-08-20 Patent Concern Nv Soil cultivating machine
GB2057239A (en) * 1979-08-24 1981-04-01 Lely Nv C Van Der Drive coupling
EP0165638A1 (en) * 1984-06-12 1985-12-27 P.J. Zweegers en Zonen Landbouwmachinefabriek B.V. Apparatus for farming vegetation lying on the ground
EP0203023A1 (en) * 1985-05-21 1986-11-26 Kuhn S.A. Haymaking machines with several raking wheels
US4615397A (en) * 1985-10-30 1986-10-07 Deutz-Allis Corporation Agricultural implement with double wing folding mechanism using toggle linkage and hydraulic actuator
DE8602563U1 (en) * 1986-01-31 1987-04-16 Kloeckner-Humboldt-Deutz Ag Zweigniederlassung Fahr, 7702 Gottmadingen, De
DE8625784U1 (en) * 1986-09-26 1987-03-05 Kloeckner-Humboldt-Deutz Ag Zweigniederlassung Fahr, 7702 Gottmadingen, De
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0300937B1 (en) * 1987-07-15 1991-11-13 Kuhn S.A. Haymaking machine equipped with several pivoting raking wheels in order to be folded up for transport or storage
EP1763980A1 (en) * 2005-09-16 2007-03-21 Amazonen-Werke H. Dreyer GmbH & Co. KG Driving device for an agricultur device

Also Published As

Publication number Publication date
EP0288416B1 (en) 1994-10-05
DE3713474A1 (en) 1988-11-03
DE3713474C2 (en) 1989-12-28
ATE112444T1 (en) 1994-10-15
DE3851714D1 (en) 1994-11-10

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